Lcd Monitor

Ok.. So Im A Complete Noob About This Stuff.. And Am Planning To Buy A Widescreen 19" Lcd Monitor .. Which Is The Best ? Price Range B/w $200-250
And I Dont Know What Is Contrast Ratio,refresh Rate,response Time ..etc .. So Please Explain
And I Dont Know What Is Contrast Ratio,refresh Rate,response Time ..etc .. So Please Explain
Im Gonna Use It For Watching Movies Nd Browsing..